Added information about the migration to Alpine

This commit is contained in:
Juan Luis Baptiste 2020-03-23 18:54:43 -05:00
parent 32fa6bcd68
commit 0ec4289588

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@ -7,8 +7,18 @@ Simple Postfix SMTP TLS relay [docker](http://www.docker.com) image with no loca
It also includes rsyslog to enable logging to stdout.
_If you want to follow the development of this project check out [my blog](http://not403.blogspot.com.co/search/label/postfix)._
### Available image tags
This image has been built on CentOS 7 since its inception, but the new CentOS 8 does [not include supervisor](https://github.com/juanluisbaptiste/docker-postfix/issues/16) anymore, so I have started migrating this image to Alpine linux. So currently there are two image tags available:
* juanluisbaptiste/postfix:latest, current CentOS 7 based image
* juanluisbaptiste/postfix:alpine, new Alpine based image
If testing goes well for some time, then the current CentOS image will be replaced by the new Alpine one, and _latest_ tag will point to it.
### Build instructions
Clone this repo and then:
@ -42,13 +52,13 @@ The following env variable(s) are optional.
To use this container from anywhere, the 25 port or the one specified by `SMTP_PORT` needs to be exposed to the docker host server:
docker run -d --name postfix -p "25:25" \
docker run -d --name postfix -p "25:25" \
-e SMTP_SERVER=smtp.bar.com \
-e SMTP_USERNAME=foo@bar.com \
-e SMTP_PASSWORD=XXXXXXXX \
-e SERVER_HOSTNAME=helpdesk.mycompany.com \
juanluisbaptiste/postfix
If you are going to use this container from other docker containers then it's better to just publish the port:
docker run -d --name postfix -P \